First Business Financial Services’s Aon AON Stock Holding History

First Business Financial Services’s Portfolio AON Stock Details AON Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$412K	Sell	1,242 -142	-10%	-$45.8K	0.03%	140
2026 Q1	$447K	Hold	1,384	–	–	0.04%	124
2025 Q4	$488K	Hold	1,384	–	–	0.04%	116
2025 Q3	$494K	Hold	1,384	–	–	0.05%	126
2025 Q2	$494K	Hold	1,384	–	–	0.04%	122
2025 Q1	$552K	Sell	1,384 -248	-15%	-$95.1K	0.05%	111
2024 Q4	$586K	Hold	1,632	–	–	0.06%	111
2024 Q3	$565K	Hold	1,632	–	–	0.06%	105
2024 Q2	$479K	Hold	1,632	–	–	0.05%	107
2024 Q1	$545K	Hold	1,632	–	–	0.06%	103
2023 Q4	$475K	Sell	1,632 -296	-15%	-$94.7K	0.06%	105
2023 Q3	$625K	Buy	1,928 +7	+0.4%	+$2.32K	0.08%	101
2023 Q2	$663K	Hold	1,921	–	–	0.08%	97
2023 Q1	$606K	Hold	1,921	–	–	0.08%	98
2022 Q4	$577K	Hold	1,921	–	–	0.08%	97
2022 Q3	$515K	Hold	1,921	–	–	0.07%	96
2022 Q2	$518K	Hold	1,921	–	–	0.07%	101
2022 Q1	$626K	Hold	1,921	–	–	0.07%	92
2021 Q4	$577K	Hold	1,921	–	–	0.06%	100
2021 Q3	$549K	Hold	1,921	–	–	0.06%	101
2021 Q2	$459K	Hold	1,921	–	–	0.05%	106
2021 Q1	$442K	Buy	1,921 +220	+13%	+$48.4K	0.06%	97
2020 Q4	$359K	Buy	+1,701	New	+$347K	0.05%	99
2020 Q2	–	Sell	-1,975	Closed	-$326K	–	122
2020 Q1	$326K	Hold	1,975	–	–	0.06%	86
2019 Q4	$411K	Hold	1,975	–	–	0.07%	89
2019 Q3	$382K	Hold	1,975	–	–	0.07%	86
2019 Q2	$381K	Buy	+1,975	New	+$358K	0.07%	86
2015 Q4	–	Sell	-3,269	Closed	-$290K	–	56
2015 Q3	$290K	Buy	+3,269	New	+$316K	0.09%	60

Other funds holding AON

BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return

Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM

JP Morgan Chase New York $1.81T AUM 41.13% 1-Year Est. Return

Capital World Investors Los Angeles, California $846B AUM 46.74% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Dodge & Cox San Francisco, California $191B AUM 17.5% 1-Year Est. Return

Massachusetts Financial Services Boston, Massachusetts $315B AUM 27.84% 1-Year Est. Return

Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM

Morgan Stanley New York $1.89T AUM 35.08% 1-Year Est. Return

Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return

First Business Financial Services's AON Position: Q2 2026 in Review

First Business Financial Services reduced its Aon (AON) stake by 10% in Q2 2026, selling an estimated $45.8K and leaving 1,242 shares worth $412K. The position accounts for 0.03% of the portfolio, ranked #140.

First Business Financial Services first reported a position in AON in Q3 2015 and has held it in 28 quarters since. The position peaked at $663K in Q2 2023. 1,263 funds tracked by Wall St. Rank hold AON as of Q2 2026.

First Business Financial Services held 1,242 shares of Aon worth $412K as of Q2 2026.
First Business Financial Services sold 142 Aon shares in Q2 2026, an estimated $45.8K.
Aon made up 0.03% of First Business Financial Services's portfolio in Q2 2026, its #140 holding.
First Business Financial Services first reported a position in Aon in Q3 2015 and has held it in 28 quarters since.
First Business Financial Services's Aon position peaked at $663K in Q2 2023.
1,263 funds tracked by Wall St. Rank held Aon as of Q2 2026.

Based on First Business Financial Services's 13F filing for Q2 2026, filed 28 Jul 2026.